Fastener.



110,839,047, v PATENTED DE'0i1s,1906..

' I."M.SYLVES ITER.

v FASTENER. APPLIOATION 1 1mm APE.19,1906.

INVENTQR.

:WITNESSESQ ATTORNEY THE mamas PETERS co, wnsnnycwn, n c.

UNITED STATES PATENT orFIoE."

IRVING MpSYLVESTER, OF PROVIDENCE, RHODE ISLAND,-ASSIGNOR TO PARKSBROTHERS AND ROGERS, OF PROVIDENCE, RHODE ISLAND, A

(JOPARTNERSHIP.

FASTENER.

Specification of Letters Patent.

T0 or whom it may concern:

Be it known that I, IRVING M. SYLVESTER, a citizen of the United States,residing at Providence, in the county of Providence and State of RhodeIsland, have invented certain new and useful Improvements in Fasteners,of which the following is a specification, reference being had thereinto the accompanying drawings.

My invention relates to bracelets, particularly to that class known asconcealed-j oint bracelets, wherein it is essential thatthe braceletexterior shall be intact and free from defacement.

My invention has for its primary object a fastening means particularlyadapted to fulfil the peculiar requirements of such a bracelet by beincompletely concealed from view when close and avoiding any structuraldetails which shall be visible upon the. exterior under anycircumstances.

Another object is to provide a fastening means which shall combinedurability with simplicity and cheapness.

To the above ends my invention consists in the novel construction andcombination of parts hereinafter set forth, and illustrated in theaccompanying drawings, wherein Figure 1 is a plan view of an entirebracelet in closed position, in which is embodied my novel fastener;Fig. 2, a longitudinal central section of that portion of the braceletadj a-- cent thefastener Fig. 3,. a like section of the same with thefastener in disengaged position; and Figs. 4 and 5, side and plan views,respectively, of the stud-fastener member.

Like reference characters indicate like parts throughout the views.

In the drawings, A and B represent the hollow wings of an ordinarybracelet of the concealed joint type. Soldered or other wise fixedwithin the hollow end of the wing A is a ring O, one of whose endsslightly projects beyond the end of the Wing and is slightly beveled orinclined, as at c, to facilitate entrance of the end into the end of theother wing, while the other end forms a shoulder 0 within the wing.

In the wing B is soldered or otherwise fixed a fastening member orblock, (represented in a general manner by D.) In detail this membercomprises a body 01, a reduced and somewhat-flattened neck (1, andterminates in a head (1 nearly elliptical in cross-section.

The head, neck, and a portion of the body are slitted. The bifurcatingrecess (1 divides the head into two compressible spring members e andcf, each provided beyond the end of the wing with a shoulder 6 upon itsexterior.

The member D has its body d and the Patented Dec. 18, 1906.

majorportion of its neck (1 inclosed within the wing B.

To engage the fastener parts, the wing B is impelled toward the wing A,whereby the spring mjembers'e e of the head-d traverse the ring 0 of theother wing. Since the thickness of the head d is greater than the sizeof the-opening in the ring O, the head is compressed while traversingthe ring and expands thereafter, locking the parts by the contact of theshoulders 6 against the shoulder 0 of the ring O.

- It will be observed that the bracelet may be opened and closed by theuse of one hand;

that slight strain or pressure is brought to bear upon the head d whenthe fastener is engaged; that the curvature of the shoulder a, inconjunction with the shoulder 0, serves to impel the margin of the wingA into contact with the margin of the wing B as the margins approacheach other, and that no defacement of the bracelet exterior exists.

Upon reference to Figs. 2, 3, and 4 it will be seen thatthe slit in themember D does not extend in the general direction of the length of theblock, which latter is curved; but the slit is straight and what may betermed eccentrically disposed. .By this means the compressible membersare constructed so as to stand the without danger of breaking.

What I claim is 1. The combination with the hollow wings of a bracelet,of ablock in the end of one wing and curved to conform to the curvatureof the wingand formed with a slitted end and compressible members withrounded shoulders, the slit extending eccentrically of the block, and amember in the end of the other wing having a shoulder within the wingand a beveled outer end as and for the purpose specified.

2. In a bracelet, a catch for its wings, the

greatest strain same comprising a curved shank adapted to head and areduced neck forming shoulders between .the neck and head, andaringadapt- In testimony whereof I have afiixed my eddtodfit within theadjacefiit holllowwing prosignature in presence of two witnesses.

Vi e Wit an o enin 0 ess iameter than 7 the thickness of Sheuficompressed shoulders, IRVING Si LVESTER' said ring encircling theneck and bearing Witnesses:

against the shoulders of the members slightly HORATIO E. BELLoWs,compressing the latter. 1' FRED G. COZZENO.

